package com.my.package1;
import java. util. Scanner;
public class homework {

        public static void main(String[]args) {
            Scanner sc = new Scanner(System.in);
            System.out.println("请输入年份：");
            int year = sc.nextInt();
            if (year >= 0) {
                if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
                    System.out.println(year + "年不是闰年");
                }else{
                    System.out.println(year + "年不是闰年");
                }
            } else {
                System.out.println("输入错误");

            }
        }
}

